B12 deficiency anemia may also be caused by a lack of intrinsic factor-pernicious anemia. The patient's digestive system cannot absorb B12 properly. Signs and symptoms of pernicious anemia may include: 1  Fatigue.2  Shortness of breath. 3  Palpitations.12 deficiency anemia may also be caused by a lack of intrinsic factor-pernicious anemia. The patient's digestive system cannot absorb B12 properly. Signs and symptoms of pernicious anemia may include: 1  Fatigue. 2  Shortness of breath.
Unlike, say, Expedia, which is an independent online travel agent (it's owned by Microsoft) that displays fares provided by all carriers, Orbitz is owned by American Airlines, Continental, Delta, Northwest and United, which alone account for more than three quarters of the total U.S. air travel market.hat's because Southwest has never really been one of industry pack. Part of the difference is that Southwest has been the most consistently profitable airline over the last 30 years precisely at the expense of the other major carriers.
Delta is one of the four founding members of the SkyTeam airline alliance, and operates joint ventures with: Air France-KLM and Alitalia; Virgin Atlantic; and Virgin Australia. Regional service is operated under the brand name Delta Connection. Orlando International Airport â Delta built up an Orlando hub shortly after the demise of Eastern Air Lines in the early 1990s, and subsequently became the Official Airline of Walt Disney World.